heat index

In Dry Cities, Vegetation Can Provide Strong Cooling Effects But In Humid And Compact Neighbourhoods, Planners Also Need To Think About Airflow And Moisture Build-Up, Say Researchers

The India Meteorological Department has launched a new heat index. This index provides a more realistic 'feels-like temperature' by combining air temperature and humidity. It helps people understand actual heat stress, especially in cities like Nagpur. This new measure accounts for humidity's impact, which traditional heatwave definitions often miss.

Various Other Researches Too Point To Rise; Loss Of Green Cover, Concrete Sprawl Among Reasons

Index provides information on impact of humidity on high temperature

Delhi is set to experience light showers and gusty winds from Sunday to Friday, keeping daytime temperatures below normal. Following Thursday's rain and hailstorms, Friday saw temperatures dip significantly. The IMD has issued a yellow alert for rain and thunderstorms on Sunday and Monday, with temperatures expected to fluctuate but remain moderate.

A powerful thunderstorm swept through Delhi late Sunday, bringing strong winds and rain that disrupted flights and lowered temperatures significantly. The storm dramatically improved air quality, leading to the lifting of Stage 1 GRAP measures. More rain is forecast for Monday night and Tuesday, with temperatures expected to rise later in the week.

Pakhala, a traditional fermented rice dish from Odisha, is emerging as India’s ultimate summer survival bowl. Combining hydration, nutrition, and cooling properties in one simple meal, it works as both food and drink during extreme heat. Backed by scientific research, its probiotics, electrolytes, and improved nutrient absorption make it ideal for hot climates. Long overlooked outside eastern India, Pakhala reflects how traditional wisdom offers practical, affordable solutions for staying nourished, hydrated, and resilient through harsh Indian summers.

Delhi experienced a high of 42.3 degrees Celsius, with some areas hit by a dust storm. The city anticipates rain from Monday night to Wednesday, with temperatures expected to dip. After three days of heatwave conditions, including the hottest April day in four years, a yellow alert is in place for Wednesday.

Voters in Chennai on April 23rd face a challenging election day with IMD predicting sweltering heat and high humidity. Expect daytime temperatures around 37-38°C, with "feels-like" temperatures soaring to 40-41°C in coastal areas due to humidity. Interior districts are set to be even hotter. Light rain is possible in some southern and delta regions.

India is grappling with an unusually early and prolonged summer in 2026, marked by soaring temperatures and intensifying heatwaves. This extreme heat is exacerbating water scarcity, creating a critical link between two pressing environmental challenges. The nation's health systems are bracing for increased heat-related illnesses as warm nights offer little respite.